We're going to need to do three steps to solve this problem.
Step 1: We have to figure out how many feet the participant walked each day.
Step 2: We have to figure out how many feet the participant walked in a week if the number of steps each day does not change.
Step 3: We have to convert the number of feet she walked in a week into the number of kilometers she walked in a week.
Step 1:
Each step moves the participant 2.5 feet and the participant walked 8882 steps per day. To get the number of feet she walked each day, we multiply 8882 by 2.5:
8882 x 2.5 = 22,205 feet per day
Step 2:
There are seven days in the week. We know, because the problem tell us so, that the participant takes the same number of steps each day. So every day the participant walks 22,205 feet. We multiply the number of feet per day that she walks by the number of days in the week:
22,205 x 7 = 155,435 feet per week
Step 3:
We have to convert feet to kilometers.
To do this, we are going to first go from feet to meters and then from meters to kilometers.
There are 0.3048 meters in every foot. You can look that up.
Since the participant walks 155,435 feet during the week, we multiply that number of feet by the number of meters in every foot:
155,435 x 0.3048 = 47,376.59 meters
You might remember that there are 1,000 meters in every kilometer. So, to convert meters into kilometers, we divide the number of meters by 1,000:
47,376.59/1000 = 47.38 km
That is a lot of walking in one week!!
